5.0L V8 Windsor (AU Falcon) Engine

5.0L V8 Windsor (AU Falcon) Engine

Information on the 5.0L V8 Windor engine as found in the Australian Ford Falcon AU XR8.






General Information

Cylinders
8
Displacement
4942 cc / 302 ci
Firing Order
1,3,7,2,6,5,4,8
Cylinder Orientation
From front of engine 
1,2,3,4 LHS
5,6,7,8 RHS




CAN

This vehicles uses a serial bus for various devices throughout the vehicle. This can include the dashboard, ABS, and Body Control. Haltech does not support this.









Sensor Information

Crank/Cam Sensor

This engines uses a Crank Position Sensor and a Cam Position Sensor.  The crank trigger has a 36x tooth wheel with a 1x tooth missing gap and is located on the front crank pulley.  The cam trigger has a single tooth.


  









Crank Sensor

A Reluctor crank position sensor is used.  This is located on the front of the engine.

  

Reluctor Wiring
Pin
Description
Haltech Connection (Trigger 4-core)
1
Reluctor +
Yellow
2
Reluctor -
Green





Cam Sensor

A Reluctor cam sensor is used. This is located on the front of the engine near the ignition coils.

    
  

Reluctor Wiring
Pin
Description
Haltech Connection (Home 4-core)
1 - Dark Blue/Orange
Reluctor +
Yellow
2 - Dark Green
Reluctor -
Green










Ignition Coils and Igniter

This engine has waste spark ignition. There are two coil packs each with a 4x spark discharge terminals. Each of the coil packs is actually 2x dual post coils in one unit. The ignition coils on this engine require an external igniter module as the OEM ECU has the igniters internally.  A Haltech HPI 4 igniter module is a good choice for this.

There are two of these coils




Centre pin is the 12V+ Switched
Wire Colour
Description
Haltech Connection
Yellow/BlackCoil 1+6 Igniter SignalIgniter Channel 1 (Ignition Output 1)
Yellow/RedCoil 3+5 Igniter SignalIgniter Channel 2 (Ignition Output 2)
Yellow/WhiteCoil 4+7 Igniter SignalIgniter Channel 3 (Ignition Output 3)
Brown
Coil 2+8 Igniter Signal
Igniter Channel 4 (Ignition Output 4)
Red/Dark Green
12V+ Switched
---


Haltech HPI Igniter

A Haltech HPI 4 igniter is recommended for this application.
    

See the Haltech HPI Quick Start Guide for wiring information on these igniters.








Throttle Position Sensor

This engine uses a cable operated throttle body with a position sensor.
  

Pin
Description
Haltech Wiring
1 - Orange/Black
5V+5V+ (Orange)
2 - Dark Green/Black
TPS SignalSpare AVI (AVI-10 White)
3 - Black/White
Signal GroundSignal Ground (Black/White)






MAP Sensor

These engines do not come with a MAP sensor. 
Use the internal MAP sensor that comes with your ECU.  For higher boost levels an external MAP sensor should be used instead, connected to a spare AVI.








Idle Valve

This engine uses a 2-pin BAC (Bypass Air Control) Valve which is duty controlled by the ECU via 1x output.

2-pin BAC Wiring
Pin
Description
Haltech Connection
1
Open Signal
Spare Output
2
Power
12V+ Switched








Coolant Temperature

 
Wiring is not polarity sensitive
Pin
Haltech Connection
1
Any Spare AVI*
2
Signal Ground
An AVI with a selectable Pullup should be used.  If not and external 1k pullup to 5V should be connected.







Air Temperature

An Inlet Air Temperature Sensor is fitted to this engine.  It is located in the inlet duct.    
    
Wiring is not polarity sensitive
Pin
Haltech Connection
1
Any Spare AVI*
2
Signal Ground
An AVI with a selectable Pullup should be used.  If not and external 1k pullup to 5V should be connected.







Knock Sensor

This engine does not come with a knock sensor.  When using an Elite 2000 or 2500 model a Haltech HT-011100 Knock Sensor can be added to the block if required.

Haltech HT-011100 Knock Sensor


Pin
Haltech Connection
1
Knock Signal
2
Signal Ground






MAF Sensor

Although most users of Haltech ECUs will be deleting the MAF, it is possible to use a MAF if you prefer.
  

Pin
Description
Haltech Connection
1 - N/C
No Connection
---
2 - Red
12V+ Switched
--- (Grey/Red)
3 - Black/Dark Green
Chassis Ground
---
4 - Tan/Light Blue
Signal Ground
Signal Ground (Black/White)
5 - Light Blue/Red
MAF Signal
Spare AVI
6 - N/C
No Connection
---








O2 Sensors

This engine has Narrow Band O2 sensors.  Although they can be used for light load tuning for Lambda 1.0, they cannot be used for tuning under power.

For correct operation a Haltech WB2 kit is highly recommended for this application, with the provided 4.9 sensors replacing the pre-cat sensors.  Sensors use a 22mm socket or spanner to remove and replace.










Vehicle Speed Sensor

This engine uses a Hall Effect Vehicle Speed sensor.  The signal first goes to the instrument cluster which then passes on the signal to the ECU.
  
If wiring direct to sensor
Pin
Description
Haltech Connection
+12V+ Switched---
SSignalSpare SPI
-Signal GroundSignal Ground (Black/White)








Injector Data

Flow

The injector flow rate is measured with the injectors held wide open at 100% duty.  For fuel systems with a fixed regulator pressure (often returnless systems) that is not referenced to manifold pressure the flow needs to be mapped over Manifold Pressure for accurate tuning.

Injector Flow: 200 cc/min


Dead Time

When an injector is commanded to open for a certain amount of time, the dead time is the amount of time the injector is not actually open during this period.  It covers the time to energise the solenoid and begin to open and the time to close as well.  There are also transient periods during which the injector is opening and closing where fuel flow is not at full capacity so this lost peak flow period is also taken into account.  










OEM ECU Information


   

Location

The ECU is located in the passenger left side kick panel.  The ECU bracket is rivetted in place and requires drilling to remove.



ECU Pinout



   



    • Related Articles

    • L Engine

      Information on the Honda L12 to L15 engine. General Information Cylinders 4 Displacement L12 1246 cc / 73.1 ci L13 1339 cc / 81.7 ci L15 1496 cc / 91.4 ci Firing Order 1,3,4,2 CAN This vehicles uses CAN bus for various devices throughout the vehicle. ...
    • 4.0L 6 Cylinder (EB-II to AU)

      The 4.0L EFI Ford 6-cylinder engine was introduced in the Australian EB Series 2 Falcon.  General Information Cylinders 6 Displacement 3984cc Firing Order 1,5,3,6,2,4 Cylinder Orientation (from drivers seat) 1 Front 6 Rear  Model Variants EB PIP TFi ...
    • Engine Configuration

      Engine Configuration The Engine Configuration node contains basic configuration information about your engine.  Engine Information Engine Capacity The Displacement of the engine. The units for Displacement are selected in the NSP software under ...
    • Ford Falcon I6 Auxiliary Connector

      The Elite Pro Plug-in Series ECUs are equipped with an auxiliary connector, to provide access to a number of additional inputs and outputs. Each ECU purchase includes the Auxiliary Connector Kit (HT-131001), which contains 1 x auxiliary connector, 1 ...
    • Engine Control Relay

      Engine Control Relay The Engine Control Relay function allows the Nexus ECU to control the 12V+ power supply to certain parts of the engine management, such as injectors and ignition coils.  This function should remain enabled when a Haltech supplied ...